Email Routing

[SamTzu]

I built a mail-relay server behind a fire-wall and cant get it to relay mail back to internet.
It bounces the email immediately if the receiving external server is down.

Sep 16 21:23:16 list-fi postfix/qmgr[796]: 67B1D52AA92: from=<sami@sender.com>, size=1993, nrcpt=1 (queue active)
Sep 16 21:23:16 list-fi postfix/smtpd[817]: disconnect from unknown[10.10.11.1]
Sep 16 21:23:17 list-fi postfix/smtpd[827]: connect from localhost.localdomain[127.0.0.1]
Sep 16 21:23:17 list-fi postfix/smtpd[827]: C1D5F52AA9F: client=localhost.localdomain[127.0.0.1]
Sep 16 21:23:17 list-fi postfix/cleanup[823]: C1D5F52AA9F: message-id=<ffe99b92-9de0-4f36-907b-45b9b26989f1@server17>
Sep 16 21:23:17 list-fi postfix/qmgr[796]: C1D5F52AA9F: from=<sami@sender.com>, size=2504, nrcpt=1 (queue active)
Sep 16 21:23:17 list-fi postfix/smtpd[827]: disconnect from localhost.localdomain[127.0.0.1]
Sep 16 21:23:17 list-fi amavis[32093]: (32093-03) Passed CLEAN, LOCAL [10.10.11.1] [79.133.108.180] <sami@sender.com> -> <info@receiver.com>, Message-ID: <ffe99b92-9de0-4f36-907b-45b9b26989f1@server17>, mail_id: i9u5Eq4uTaWF, Hits: 0.645, size: 1992, queued_as: C1D5F52AA9F, 1334 ms
Sep 16 21:23:17 list-fi postfix/smtp[824]: 67B1D52AA92: to=<info@receiver.com>, relay=127.0.0.1[127.0.0.1]:10024, delay=1.4, delays=0.1/0.01/0/1.3, dsn=2.0.0, status=sent (250 2.0.0 Ok, id=32093-03, from MTA([127.0.0.1]:10025): 250 2.0.0 Ok: queued as C1D5F52AA9F)
Sep 16 21:23:17 list-fi postfix/qmgr[796]: 67B1D52AA92: removed
Sep 16 21:23:17 list-fi postfix/smtp[829]: connect to mail.receiver.com[79.133.125.179]:25: Connection refused
Sep 16 21:23:18 list-fi postfix/smtp[829]: C1D5F52AA9F: to=<info@receiver.com>, relay=none, delay=0.18, delays=0.05/0.01/0.11/0, dsn=4.4.1, status=deferred (connect to mail.reciver.com[79.133.125.179]:25: Connection refused)
Sep 16 21:23:18 list-fi postfix/qmgr[796]: C1D5F52AA9F: from=<sami@sender.com>, status=expired, returned to sender

I'm pretty sure these settings are correct.

Email Routing
- Domain = receiver.com
- Destination = mail.receiver.com
Email relay recipient
- info@receiver.com

What am I missing?

[falko]

Please check if your server is blacklisted: http://mxtoolbox.com/blacklists.aspx

[SamTzu]

Nope, neither sender, relay or receiving are not blacklisted.

[falko]

Do you have this problem for all recipients, or just for certain ones (same domain?)?

[OnePercentile]

I'm sorry if this is not in the right category:

In ISPConfig 3.0.3.3, Postfix is mishandling Alias Email Domain messages when user portion of email address is misspelled.

Example.

Alias Email Domain: A-domain -> B-domain

User: userA (mailbox in B-domain).

WORKING:
Send a message to userA@B-domain (gets to userA@B-domain)
Send a message to userA@A-domain (gets to userA@B-domain)
Send a message to userB@B-domain (gets rejected)

NOT WORKING:
Send a message to userB@A-domain (creates userB in the B-domain folder, but should be rejected because userB doesn't exist @B-domain. Over time I have tons of Maildir folders with mistyped users@alias-domains that have to be cleaned up..

Will continue to find possible mail drop issues that might be breaking in the mail user verify through alias domains..

Thank you

[till]

Thats a known problem with some imap daemons (please see bugtracker) and has been fixed already in svn.